2943825 - Duplicate locale on non-migrate locale instance

• Both en_GB_SF  and en_GB can be seen on instance
• other locale also would seem to show twice like ('ja' and 'ja_JP')

SAP SuccessFactor HXM Suite

This is because the instance is not locale migrated

For "non-locale-migrated" instances, that duplication is expected behavior.

2395445 - How to Set the Default Locale for New Users added to an instance?

2087357 - Manage language has no language packs available for locales ending on _SF

locale, _SF, non migrated locale,  , KBA , LOD-SF-PLT-LAN , Manage Language & Text Replacements , How To